Final Results of GERDA on the Search for Neutrinoless Double-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>β</mml:mi></mml:mrow></mml:math> Decay
M. Agostini(University College London), G. R. Araujo(University of Zurich), A. M. Bakalyarov(Kurchatov Institute), M. Balata(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso), И. Р. Барабанов(Institute for Nuclear Research), L. Baudis(University of Zurich), C. Bauer(Max Planck Institute for Nuclear Physics), E. Bellotti(Istituto Nazionale di Fisica Nucleare, Sezione di Milano Bicocca), S. Belogurov(Kurchatov Institute), A. Bettini(University of Padua), L. Bezrukov(Institute for Nuclear Research), V. Biancacci(University of Padua), D. Borowicz(Joint Institute for Nuclear Research), E. Bossio(Technical University of Munich), V. Bothe(Max Planck Institute for Nuclear Physics), V. Brudanin(Joint Institute for Nuclear Research), R. Brugnera(University of Padua), A. Caldwell(Max Planck Institute for Physics), C. Cattadori(Istituto Nazionale di Fisica Nucleare, Sezione di Milano Bicocca), A. Chernogorov(Kurchatov Institute), T. Comellato(Technical University of Munich), V. D’Andrea(University of L'Aquila), É. V. Demidova(Kurchatov Institute), N. Di Marco(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso), E. Doroshkevich(Institute for Nuclear Research), F. Fischer(Max Planck Institute for Physics), M. Fomina(Joint Institute for Nuclear Research), A. M. Gangapshev(Institute for Nuclear Research), A. Garfagnini(University of Padua), C. Gooch(Max Planck Institute for Physics), P. Grabmayr(University of Tübingen), V. Gurentsov(Institute for Nuclear Research), K. Gusev(Kurchatov Institute), J. Hakenmüller(Max Planck Institute for Nuclear Physics), S. Hemmer(Istituto Nazionale di Fisica Nucleare, Sezione di Padova), R. Hiller(University of Zurich), W. Hofmann(Max Planck Institute for Nuclear Physics), J. Huang(University of Zurich), M. Hult(European Commission), Л. В. Инжечик(Institute for Nuclear Research), J. Janicskó Csáthy(Technical University of Munich), J. Jochum(University of Tübingen), M. Junker(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso), V. V. Kazalov(Institute for Nuclear Research), Y. Kermaïdic(Max Planck Institute for Nuclear Physics), H. Khushbakht(University of Tübingen), T. Kihm(Max Planck Institute for Nuclear Physics), I.V. Kirpichnikov(Kurchatov Institute), A. Klimenko(Joint Institute for Nuclear Research), R. Kneißl(Max Planck Institute for Physics), K.T. Knöpfle(Max Planck Institute for Nuclear Physics), O. Kochetov(Joint Institute for Nuclear Research), В. Н. Корноухов(Institute for Nuclear Research), P. Krause(Technical University of Munich), V. V. Kuzminov(Institute for Nuclear Research), M. Laubenstein(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso), A. Lazzaro(Technical University of Munich), M. Lindner(Max Planck Institute for Nuclear Physics), I. Lippi(Istituto Nazionale di Fisica Nucleare, Sezione di Padova), A. Lubashevskiy(Joint Institute for Nuclear Research), Б. Лубсандоржиев(Institute for Nuclear Research), G. Lutter(European Commission), C. Macolino(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso), B. Majorovits(Max Planck Institute for Physics), W. Maneschg(Max Planck Institute for Nuclear Physics), L. Manzanillas(Max Planck Institute for Physics), M. Miloradovic(University of Zurich), R. Mingazheva(University of Zurich), M. Misiaszek(Jagiellonian University), P. Moseev(Institute for Nuclear Research), Y. Müller(University of Zurich), I. Nemchenok(Joint Institute for Nuclear Research), K. Panas(Jagiellonian University), L. Pandola(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud), K. Pelczar(European Commission), L. Pertoldi(University of Padua), P. Piseri(University of Milan), A. Pullia(University of Milan), C. Ransom(University of Zurich), L. Rauscher(University of Tübingen), S. Riboldi(University of Milan), N. Rumyantseva(Kurchatov Institute), C. Sada(University of Padua), F. Salamida(University of L'Aquila), S. Schönert(Technical University of Munich), J. Schreiner(Max Planck Institute for Nuclear Physics), M. Schütt(Max Planck Institute for Nuclear Physics), A.-K. Schütz(University of Tübingen), O. Schulz(Max Planck Institute for Physics), M. Schwarz(Technical University of Munich), B. Schwingenheuer(Max Planck Institute for Nuclear Physics), O. Selivanenko(Institute for Nuclear Research), E. Shevchik(Joint Institute for Nuclear Research), M. Shirchenko(Joint Institute for Nuclear Research), L. Shtembari(Max Planck Institute for Physics), H. Simgen(Max Planck Institute for Nuclear Physics), A. Smolnikov(Joint Institute for Nuclear Research), D. Stukov(Kurchatov Institute), A. A. Vasenko(Kurchatov Institute), A. Veresnikova(Institute for Nuclear Research), C. Vignoli(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso), K. von Sturm(University of Padua), T. Wester(Technische Universität Dresden), Christoph Wiesinger(Technical University of Munich), M. Wójcik(Jagiellonian University), E. Yanovich(Institute for Nuclear Research), Birgit Zatschler(Technische Universität Dresden), I. Zhitnikov(Joint Institute for Nuclear Research), S. V. Zhukov(Kurchatov Institute), D. Zinatulina(Joint Institute for Nuclear Research), A. Zschocke(University of Tübingen), A. J. Zsigmond(Max Planck Institute for Physics), Κ. Zuber(Technische Universität Dresden), G. Zuzel(Jagiellonian University)
Cited by 380Open Access
Abstract
The GERmanium Detector Array (GERDA) experiment searched for the lepton-number-violating neutrinoless double-β (0νββ) decay of ^{76}Ge, whose discovery would have far-reaching implications in cosmology and particle physics. By operating bare germanium diodes, enriched in ^{76}Ge, in an active liquid argon shield, GERDA achieved an unprecedently low background index of 5.2×10^{-4} counts/(keV kg yr) in the signal region and met the design goal to collect an exposure of 100 kg yr in a background-free regime. When combined with the result of Phase I, no signal is observed after 127.2 kg yr of total exposure. A limit on the half-life of 0νββ decay in ^{76}Ge is set at T_{1/2}>1.8×10^{26} yr at 90% C.L., which coincides with the sensitivity assuming no signal.
Related Papers
No related papers found
Powered by citation graph analysis